Flotation uses and preparation methods of ethylenediamine phosphate_Industrial additives

Background and overview^[1]

Ethylenediamine phosphate is an effective activator for copper oxide ores. This activator has an efficient activation effect on the flotation of oxygen-sulfur mixed copper and copper oxide ores. In the flotation operation of copper oxide ore containing malachite, adding a small amount of ethylenediamine phosphate can not only improve the flotation recovery rate of copper, but also reduce the amount of collector. Ethylenediamine phosphate is easy to use and can be used without changing the original production process of the dressing plant. During the flotation process, the foam layer is stable and easy to operate. Ethylenediamine phosphate is non-toxic, harmless, non-corrosive, environmentally friendly, and has a shelf life of about 1 year. If the product has a small amount of crystal precipitation due to changes in climate and temperature, the quality will not be affected.

Preparation^[1-2]

1) Prepare a steel slag grinding aid. The raw material components and the parts by weight of each component are: 8 to 12 parts of acrylamide, 8 to 12 parts of benzamide, and 15 parts of alkanolamine. ~20 parts, 5~10 parts of ethylenediamine phosphate, 10~15 parts of calcium lignosulfonate, 8~12 parts of sodium lignosulfonate, 0.1~0.5 parts of tributyl phosphate, 20~80 parts of water, preparation The method is: add acrylamide, benzamide, and alkanolamine to water in proportion to dissolve, then add ethylenediamine phosphate, calcium lignosulfonate, and sodium lignosulfonate commonly used antioxidants in sequence, mix and stir, and finally Add tributyl phosphate and stir to obtain steel slag grinding aid. The invention has a simple process and can improve the activity index of steel slag.

2) Prepare ethylenediamine phosphorus borate flame retardant carbon-forming agent. Take EDAP (ethylenediamine phosphate) Lomon titanium dioxide R9961.28Kg, place it with 310g boric acid in a 5L kneader, stir and mix at room temperature for 30 minutes, add 15g methylphenyl silicone oil and continue stirring for 30 minutes, raise the temperature to 190°C and react for 3 hours , unload to obtain flame retardant products.